Dicalcium Phosphate Dihydrate Granular (DC)

    DESCRIPTION

    FormulaCaHPO4 . 2H20
    AppearanceWhite granules
    CharacteristicStable in air. Insoluble in alcohol, practically insoluble in water, but is readily soluble in dilute hydrochloric acid and nitric acids. Alkaline in aqueous solution (pH value 8.95 ± 0.35). It is easy to lose crystal water at 180°C and becomes sodium pyrophosphate at 250°C
    PharmacopoeiaFCC, USP, EP, E341 (ii)
    CAS No.7789-77-7
    BTN2825 25 0000
    Molecular weight172.09

    SPECIFICATIONS

    Assay98.0 to 102.0%
    Identification
    (A,B & C)
    Positive
    Particle sizeon 40mesh: Max 1%
    On 100 mesh: Min 40%
    Pass 325 mesh: Max 5%
    Acid Insoluble
    (Substance)
    Max 0.2 %
    Chloride (Cl)Max 0.25 %
    BariumConforms
    Bulk DensityTapped: 0.9-1.2g/ml
    Untapped: 0.8 - 1.1g/ml
    FluorideMax 0.005 %
    Heavy metalsMax 30 ppm
    CadmiumMax 1 ppm
    ArsenicMax 3 ppm
    Loss on Ignition24.5 to 26.5%
    LeadMax 2 ppm
    MercuryMax 0.1 ppm
    Iron (Fe)Max 400 ppm
    CarbonatesConforms
    SulphateMax 0.5 %
    P2O5 (as anhydrous)50.0 to 52.5%
    StorageStore in a tightly sealed container in a cool dry well ventilated area. Avoid exposure to heat and moisture.
    Packaging25kg paper bags with PE liner
    Shelf life2 years

    MICROBIOLOGICAL

    ColiformsNegative
    Total plate countMax 1000 cfu/g
    YeastsMax 100 cfu/g
    MouldsMax 100 cfu/g
    SalmonellaNegative
    Escherichia ColiNegative


    Direct Food Ingredients will ensure that any material supplied this specification will confirm to the above physical and chemical properties. However, we have no control over the use of the material and can accept no responsibility for problems caused by the customer's failure to ensure the material supplied is suitable for the intended use.

    This specification has been last modified on Thu 5 January 2012 (881)

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